The Orbit Guard was Melmac's only military. Before Melmac exploded, Alf was and Orbit Guardsman for more than a dozen years. The Orbit Guard's motto was "Guard the Orbits...Whether they need it or not." During basic training, Alf and all Orbit Guardsman learned how to pilot a space patrol ship, fire a solar blaster, and burp in three languages. One night, while ALF was out in his Orbit Guard patrol ship, Melmac exploded in nuclear war. Due to Melmac's explosion, ALF's Patrol Ship was sent hurtling into deep space. Ife he had not been wearing his seat belt, ALF would now look like Sean Penn.